test_im_files = [
    'im/test_custom_allocator.cpp',
    'im/test_node.cpp',
    'im/test_node_list.cpp',
    'im/test_radix_tree.cpp',
    'im/test_radix_tree_iterator.cpp',
    'im/test_simple_node.cpp',
    'im/test_transaction.cpp',
]